P1510

DTC P1510: ECM Back-Up Power Supply Malfunction

Wiring Diagram:

Wiring Diagram

Circuit Description
Battery voltage is supplied so that diagnostic trouble code memory, values for engine control learned by ECM, etc. are kept in ECM even when the ignition switch is turned OFF.

DTC Detecting Condition:

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure
1. Connect scan tool to DLC with ignition switch turned OFF.
2. Turn ON ignition switch and clear DTC using scan tool and run engine at idle speed for 1 min.
3. Check DTC and pending DTC.

Step 1 - 2:

DTC Troubleshooting